1. Battery Cell Technology Department of Electrical Energy Storage Fraunhofer Institute for Solar Energy Systems ISE Freiburg Germany
2. Group Leader Electrical Energy Storage Systems Institute for Photovoltaics (ipv) University of Stuttgart Stuttgart Germany
3. Head of Fraunhofer Institute for Solar Energy Systems ISE Chair of Solar Energy Systems Institute for Sustainable Technical Systems (INATECH) University of Freiburg Freiburg Germany
4. Head of Department of Electrical Energy Storage Fraunhofer Institute for Solar Energy Systems ISE Freiburg Germany